JP4388880B2 - Method and apparatus for attaching connecting socket of ground bar - Google Patents

Description

    The present invention relates to a method and an apparatus for attaching and fixing a connection socket to a proximal end side of a grounding rod having a pointed tip.

  The ground rod used by being driven into the ground is formed with a sharp tip, and a connection socket for connecting the ground rod to the base end portion or connecting to a lead wire is fixed.

  Conventionally, when connecting and fixing a connecting socket to a grounding rod, a notch is formed on the base end side of the grounding rod, and a connecting socket is fitted over the notch to cover the notch. The grounding rod and the connecting socket are integrated by caulking with a press.

  However, the conventional method has a problem that it is difficult to automate by a machine because it is troublesome to set the notch portion to the die portion of the press machine so that the directionality (angle) thereof matches.

  The present invention has been made paying attention to such a point, and provides a method and an apparatus thereof that can be set in a press die with a simple configuration and with the directionality of the notch portion being surely matched. The purpose is to do.

  In order to achieve the above-mentioned object, the invention described in claim 1 is characterized in that the notch portion is formed from the end portion of the rotating roller on the peripheral surface of a pair of rotating rollers in which a ground rod having a notch portion is disposed in proximity. Mounted in a state of projecting to the outside, rotating the grounding rod by rotating the pair of rotating rollers in the same direction, arranged corresponding to the notch projecting from the axial end of the pair of rotating rollers The rotation of the pair of rotating rollers is stopped based on the detection operation of the cutout portion by the microswitch, and when the rotation of the grounding rod is stopped, the grounding rod is moved along the axial direction and the cutout portion The end of the grounding rod forming a specified length is inserted into the connecting socket for a specified length, and the grounding rod is moved to the press machine with the connecting socket fitted, and the connecting socket is plastically deformed to form the grounding rod. To fix It is characterized in that.

  In the invention described in claim 2, a pair of rotating rollers rotating in the same direction are arranged close to each other, and a grounding rod placed between the pair of rotating rollers is moved along the axial direction by the moving means. A connecting socket holding portion for holding the connecting socket in a state where its axial center is located on the axial extension line of the rotating roller, and a press for caulking the connecting socket to the grounding rod. A micro switch that detects a notch formed in the grounding rod is arranged between the end of the rotating roller in the grounding rod moving direction and the connecting socket holding portion. A control device for stopping and controlling the driving of the rotating roller based on the detection operation of the notch portion by the microswitch is arranged.

  In the present invention, a grounding rod forming a notch for engagement on the base end side is placed on a peripheral surface portion between a pair of rotating rollers arranged in close proximity and rolled in one direction, During the rolling, the grounding rod is stopped based on detecting the notch of the grounding rod with a micro switch arranged outside one end of the rotating roller. The Sasei grounding rod is moved in the axial direction. Since the grounding rod fitted with the connecting socket is moved to the press machine part, the direction of the notch part can be matched and set in the press machine by a series of operations. The connecting socket assembling work to the grounding rod can be automatically performed by the machine.

FIG. 1 is a mechanism diagram showing a main part of a connection socket assembling apparatus showing an embodiment of the present invention.
This connecting socket assembly device includes a pair of rotating rollers (1) and (2) arranged close to each other in a horizontal posture and a driving mechanism (in which the rotating rollers (1) and (2) are synchronously driven in the same direction). 3) and a moving means (5) for moving the grounding rod (4) placed in contact with both circumferential surfaces of the pair of rotating rollers (1) and (2) along its axis, A connection socket holder (7) for holding the connection socket (6) in a state in which the axial center of the ground rod (4) is placed on the roller core (1) (2) in a state where the axis is aligned A connection socket supply path (8) for supplying the connection socket (6) to the connection socket holder (7), and a press machine (9) for caulking and fixing the grounding rod (4) and the connection socket (6). And a micro switch (10) disposed between the end surface portions of the pair of rotating rollers (1) and (2) and the connection socket holder (7).

  In the connecting socket assembling apparatus having the above-described configuration, the grounding rod (4) is supplied from the grounding rod supply device (not shown) onto the peripheral surface between the pair of rotating rollers (1) and (2). At this time, the grounding rod (4) has a sharply formed distal end on the rear side in the moving direction, and a proximal end on which the engagement notch (11) is formed on the connection socket supply path (8) side. The base end portion of the grounding rod (4) is formed there, and the notch portion (11) is in a state corresponding to the arrangement position of the microswitch (10). Protrudes from the end surface portions of the rotating rollers (1) and (2).

  When the pair of rotating rollers (1) and (2) are rotated by the drive mechanism (3) with the grounding rod (4) placed, the rotating rollers (1) and (2) rotate synchronously in the same direction. Therefore, the ground bar (4) rotates continuously in one direction. When the rotation of the grounding rod (4) is monitored by the microswitch (10), the microswitch (10) detects the engaging notch (11) formed at the base end of the grounding rod (4). The earthing rod (4) is stopped by stopping the driving mechanism (3) in response to a command from the control device (not shown), stopping the rotation of the rotating rollers (1) and (2), and operating the moving means (5). ) Is advanced in the direction along the axial center, and the grounding rod (4) is inserted into the connecting socket (6) for a certain length.

  The grounding rod (4) is further advanced with the connection socket (6) fitted, and the notch (11) for engagement formed at the base end of the grounding rod (4) is pressed by the press machine (9 The connecting socket (6) at the portion corresponding to the engaging notch (11) is plastically deformed and integrated as shown in FIG. The grounding rod (4) to which the connecting socket (6) is integrally fixed is taken out from the connecting socket assembling apparatus by a discharge device (not shown).

  In the above embodiment, the drive mechanism (3) of the rotating rollers (1) and (2) is exemplified by a chain transmission mechanism comprising an electric motor (12) and a drive chain (13). There may be. Further, in the above embodiment, as the moving means (5) of the grounding rod (4), an example in which the contact pad (16) is arranged at the tip of the retracting rod (15) of the hydraulic linear actuator (14) is illustrated. However, this contact pad (16) does not hinder the free rotation of the grounding rod (4) when the grounding rod (4) is rotated, and contacts the peripheral surface of the grounding rod (4) only during the withdrawal operation. The rod (4) is moved in the axial direction.

  Further, although not shown in the figure, the grounding rod (4) is placed on the rotating rollers (1) and (2) so that the grounding rod (4) can be smoothly rotated by the rotating rollers (1) and (2). A guide roller that is elastically pressed from above is disposed.

  The present invention can further automate the work of assembling the connecting socket to the base end portion of the ground bar by plastic deformation.

It is a mechanism figure which shows the principal part of the connection socket assembly | attachment apparatus which shows one Embodiment of this invention. It is a longitudinal cross-sectional view in the junction part of a grounding rod and a connection socket.

Explanation of symbols

1, 2 ... rotating roller, 4 ... ground rod, 5 ... moving means, 6 ... connecting socket, 7 ... connecting socket holder, 9 ... press machine, 10 ... micro switch, 11 ... notch.

Claims (2)

A method of attaching and fixing a connection socket (6) to a base end portion of a grounding rod (4) having a sharp tip and a notch portion (11) for engaging a connection socket on the base end side. ,
The notch (11) is formed on the circumferential surface of a pair of rotating rollers (1) and (2) in which a grounding rod (4) in which a notch (11) is formed is disposed close to the rotating rollers (1) and (2). The ground rod (4) rolls by rotating the pair of rotating rollers (1) and (2) in the same direction by projecting to the outside from the ends of the pair of rotating rollers (1) ( Based on the detection operation of the notch (11) in the microswitch (10) arranged corresponding to the notch (11) protruding from the axial end of 2), a pair of rotating rollers (1) When the rotation drive of (2) is stopped and the rotation of the grounding rod (4) stops, the grounding rod (4) is moved along the axial direction to form a notch (11). The end of (4) is inserted into the connecting socket (6) for a specified length, the grounding rod (4) is moved to the press machine (9) with the connecting socket (6) fitted, and the connecting socket ( 6) Plastic deformation The mounting method for connecting the grounding rod to the grounding rod (4). A device for attaching and fixing the connecting socket (6) to the base end of the grounding rod (4) having a sharp tip and a notch (11) for engaging the connecting socket on the base end side. ,
A pair of rotating rollers (1) and (2) rotating in the same direction are arranged close to each other, and a grounding rod (4) placed between the pair of rotating rollers (1) and (2) is moved by a moving means (5). A connecting socket holder (7) configured to move along the axial direction, and holding the connecting socket (6) in a state where its axial center is positioned on the extension line of the rotating rollers (1) and (2). And a pressing machine (9) for caulking the connecting socket (6) to the grounding rod (4) are arranged in order in the moving direction of the grounding rod (4), and the grounding rod of the rotating rollers (1) (2) A microswitch (10) for detecting a notch (11) formed in the grounding rod (4) is arranged between the end in the moving direction and the connecting socket holder (7). Mounting the connecting rod of the earthing rod with the control device that stops the driving of the rotating rollers (1) and (2) based on the detection operation of the notch (11) in the switch (10) Apparatus.

Images